FitSimp

The most customizable gym app

Now with a full-body muscle map that shows exactly what each workout, template, and exercise targets.

FitSimp is the most customizable gym app — built by a gym-goer who got tired of bloated logs and rigid templates. Every screen exists to make logging fast and your routine yours.

FOR EVERYONE WHO TRAINS

First-week beginners, intermediates chasing PRs, returners getting back into it, lifters and mixed-modality gym-goers alike. The visual system leans industrial because that's what depth users want. The voice meets you where you are.

BUILT BY A GYM-GOER

FitSimp is made by someone who actually trains. Every feature shipped because it solved a real problem under a bar — not because a roadmap said it should. If you've ever fumbled with a log between sets, this app is the answer to that exact frustration.

SEE WHAT YOU TRAIN

• A full-body anatomical muscle map, front and back
• Recovery view colors each region by how recovered it is, so you know what's ready to train
• Exercise and template views highlight exactly which muscles a session targets
• No more guessing from text labels — glance and go

DEEPLY CUSTOMIZABLE

• Three themes — Crimson, Warzone, Neon Grind — each with light and dark variants
• Per-template identity icons and a 10-color identity palette
• Build templates exactly how you train: any exercises, any order, your own rest intervals
• Lock Screen widgets and Live Activity layouts that fit your routine
• Pick the look that matches your gym; pick the layout that matches your training

LOG SETS IN SECONDS

• Track weight, reps, and notes per set
• Track distance-based sets for cardio and mixed-modality work
• Search the full exercise library to find anything fast
• Rest timer between sets, visible from the Lock Screen and Dynamic Island
• Heart rate streamed live from Apple Watch
• Auto-saves as you go — never lose a set

TEMPLATES THAT REMEMBER

• Save any workout as a template with its own icon and color
• Repeat last week's session in one tap
• Build a library of proven sessions

REAL HISTORY

• See PRs, volume curves, and session-by-session progress
• Per-side weights logged and tracked correctly for dumbbell work
• Heart-rate charts on every workout
• Honest stats, no streak shaming

APPLE WATCH COMPANION

• Start, log, and finish workouts from your wrist
• Heart rate flows back to your phone in real time
• Live Activity keeps the rest timer in front of you

No accounts, no cloud, no ads — your data stays on your device.